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In celebration of the 50th anniversary of Apollo 11's Moon Walk, we are offering $50 off our SparkFun Inventor's Kit for RedBot and the Arduino Engineering Kit while supplies last! Use promo code APOLLO11 at checkout until 11:59 p.m. MT to get yours today!

Shaft Collar - Clamp (1/4", 2 Pack)

These collars clamp to a ¼” shaft and feature a lip edge which helps eliminate friction when used with a ball bearing. Simply slide them on and tighten the 6-32 x 0.375” screw. These clamp collars have a bore of 0.25”, a width of 0.375”, and a thickness of 0.25”.

Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex electromechanical prototypes or finished projects a reality.

  • Bore - 0.25”
  • Width - 0.375”
  • Thickness - 0.25”
  • Screw - 6-32 x 0.375”

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